The fact that a game is old doesn't mean that you don't have to pay for it anymore. As long as a game is still sold in the shops AND/OR supported/copyrighted by the company, you MUST pay to get it.
Basically, it all depends on the company who has the rights for the game. Some companies don't care if their old games are distributed for free on internet. Other will never allow this, no matter how old the game is.
In this particular case, since its an Electronic Arts title, they are 100% against warez/abandonware. So, you'd better buy this one if you don't want troubles